CN111367355B - Time recovery method and device for electronic equipment - Google Patents

Time recovery method and device for electronic equipment Download PDF

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Publication number
CN111367355B
CN111367355B CN202010396850.3A CN202010396850A CN111367355B CN 111367355 B CN111367355 B CN 111367355B CN 202010396850 A CN202010396850 A CN 202010396850A CN 111367355 B CN111367355 B CN 111367355B
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Prior art keywords
time
battery module
module
discharging state
counter
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CN111367355A (en
Inventor
邹华
谢伟
徐小军
曾燕
何刚
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Hefei Lianbao Information Technology Co Ltd
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Hefei Lianbao Information Technology Co Ltd
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/04—Generating or distributing clock signals or signals derived directly therefrom
    • G06F1/14—Time supervision arrangements, e.g. real time clock
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
    • G06F11/0706—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation the processing taking place on a specific hardware platform or in a specific software environment
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/0796—Safety measures, i.e. ensuring safe condition in the event of error, e.g. for controlling element
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Quality & Reliability (AREA)
  • Power Sources (AREA)

Abstract

The invention discloses a time recovery method and a time recovery device for electronic equipment, wherein the electronic equipment is provided with a battery module and a clock module, the battery module is used for supplying power to the clock module when the electronic equipment is operated, and the method comprises the following steps: acquiring the time of the clock module when the battery module is converted from a discharging state to a non-discharging state, so as to acquire first time, and starting a counter to start counting; acquiring a counting result of the counter when the battery module is converted from a non-discharging state to a discharging state; performing time conversion based on the counting result and the first time to obtain current time; and performing time recovery based on the current time. The invention does not need to set an extra independent power supply to supply power to the clock module, can recover the time of the clock module when the electronic equipment is started, does not need manual operation or networking, does not need manual operation, and improves the efficiency.

Description

Time recovery method and device for electronic equipment
Technical Field
The present invention relates to the field of computer management technologies, and in particular, to a time recovery method and apparatus for an electronic device.
Background
An existing electronic device, such as a notebook computer, is usually additionally provided with an independent power supply, and the independent power supply is utilized to continuously supply power to an RTC module (clock module) in a CPU, so that the RTC module can continuously work, the problem of RTC time loss is prevented, but the scheme has higher production cost. Or a mode without an independent power supply can be adopted, and a battery in the electronic equipment is relied on to supply power for an RTC module in the CPU; however, when the battery enters a shift mode (non-discharging mode) or is over-discharged, the RTC module is powered off, so that the RTC time of the system is lost, and the electronic device is incorrect in time when being started, and needs to recover time through system synchronization time after networking or manual modification, so that the operation is complicated and the efficiency is low.
Disclosure of Invention
The embodiment of the invention aims to provide a time recovery method and a time recovery device for electronic equipment, which are used for solving the problem that the electronic equipment cannot automatically recover correct time when being started in the prior art.
In order to solve the technical problems, the embodiment of the application adopts the following technical scheme: a time recovery method for an electronic device having a battery module therein for powering a clock module when the electronic device is operating, the method comprising the steps of:
acquiring the time of the clock module when the battery module is converted from a discharging state to a non-discharging state, so as to acquire first time, and starting a counter to start counting;
acquiring a counting result of the counter when the battery module is converted from a non-discharging state to a discharging state;
performing time conversion based on the counting result and the first time to obtain current time;
And performing time recovery based on the current time.
Optionally, the step of obtaining the time of the clock module when the battery module is switched from the discharging state to the non-discharging state to obtain the first time, and starting the counter to start counting specifically includes:
judging the working state of the battery module;
when the working state of the battery module is converted from a discharging state to a non-discharging state, the BIOS is utilized to read the time of the clock module to obtain the first time, and the counter in the battery module is started to start counting.
Optionally, the acquiring the counting result of the counter when the battery module is converted from the non-discharging state to the discharging state specifically includes:
judging the working state of the battery module;
When the working state of the battery module is converted from a non-discharging state to a discharging state, the counter is closed, the count value in the counter is read through the embedded controller, a counting result is obtained, and the counting result is sent to the BIOS.
Optionally, the obtaining the current time based on the counting result and the time conversion performed by the first time specifically includes:
converting the count result to a second time using the BIOS;
and superposing the second time and the first time by using the BIOS to obtain the current time.
Optionally, the performing time recovery based on the current time specifically includes:
and updating a register value of the clock module based on the current time to complete time recovery.
Optionally, after the first time is acquired, the method further includes: the first time is saved at a predetermined location.
In order to solve the above technical problem, the present application provides a time recovery apparatus for an electronic device, the apparatus being applied to an electronic device, the electronic device having a battery module and a clock module, the battery module being configured to supply power to the clock module when the electronic device is operated, the apparatus comprising:
The first acquisition module is used for acquiring the time of the clock module when the battery module is converted from a discharging state to a non-discharging state so as to acquire first time, and starting a counter to start counting;
the second acquisition module is used for acquiring the counting result of the counter when the battery module is converted from a non-discharging state to a discharging state;
The time conversion module is used for carrying out time conversion based on the counting result and the first time to obtain the current time;
And the time recovery module is used for carrying out time recovery based on the current time.
Optionally, the first obtaining module is specifically configured to:
judging the working state of the battery module;
when the working state of the battery module is converted from a discharging state to a non-discharging state, the BIOS is utilized to read the time of the clock module to obtain the first time, and a counter in the battery module is started to start counting.
Optionally, the second obtaining module is specifically configured to:
judging the working state of the battery module;
When the working state of the battery module is converted from a non-discharging state to a discharging state, the counter is closed, the count value in the counter is read through the embedded controller, a counting result is obtained, and the counting result is sent to the BIOS.
Optionally, the time scaling module is specifically configured to:
converting the count result to a second time using the BIOS;
and superposing the second time and the first time by using the BIOS to obtain the current time.
The embodiment of the invention has the beneficial effects that: the battery inside the electronic equipment is utilized to supply power for the clock module, when the battery stops supplying power for the clock module, the time (namely the first time) of the clock module is acquired, the counter is started to count, when the electronic equipment is started again and the battery supplies power for the clock module again, the counting is stopped, the counting result is acquired, then the previous first time is combined to perform conversion, the current time can be determined, finally, the current time is utilized to perform time recovery on the clock module, manual operation or networking is not needed, manual operation is not needed, and the efficiency is improved.
Drawings
FIG. 1 is a flowchart of a time recovery method for an electronic device according to a first embodiment of the present invention;
FIG. 2 is a flowchart of a time recovery method for an electronic device according to a second embodiment of the present invention;
FIG. 3 is an electrical architecture diagram of an electronic device in an embodiment of the invention;
Fig. 4 is a block diagram of a time recovery apparatus for an electronic device according to an embodiment of the present invention.
Detailed Description
Various aspects and features of the present application are described herein with reference to the accompanying drawings.
It should be understood that various modifications may be made to the embodiments of the application herein. Therefore, the above description should not be taken as limiting, but merely as exemplification of the embodiments. Other modifications within the scope and spirit of the application will occur to persons of ordinary skill in the art.
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the application and, together with a general description of the application given above, and the detailed description of the embodiments given below, serve to explain the principles of the application.
These and other characteristics of the application will become apparent from the following description of a preferred form of embodiment, given as a non-limiting example, with reference to the accompanying drawings.
It is also to be understood that, although the application has been described with reference to some specific examples, a person skilled in the art will certainly be able to achieve many other equivalent forms of the application, having the characteristics as set forth in the claims and hence all coming within the field of protection defined thereby.
The above and other aspects, features and advantages of the present application will become more apparent in light of the following detailed description when taken in conjunction with the accompanying drawings.
Specific embodiments of the present application will be described hereinafter with reference to the accompanying drawings; however, it is to be understood that the disclosed embodiments are merely exemplary of the application, which can be embodied in various forms. Well-known and/or repeated functions and constructions are not described in detail to avoid obscuring the application in unnecessary or unnecessary detail. Therefore, specific structural and functional details disclosed herein are not intended to be limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present application in virtually any appropriately detailed structure.
The specification may use the word "in one embodiment," "in another embodiment," "in yet another embodiment," or "in other embodiments," which may each refer to one or more of the same or different embodiments in accordance with the application.
An embodiment of the present invention provides a time recovery method for an electronic device, where the electronic device has a battery module and a clock module, and the battery module is configured to supply power to the clock module when the electronic device is running, and the method includes: acquiring the time of the clock module when the battery module is converted from a discharging state to a non-discharging state, so as to acquire first time, and starting a counter to start counting; acquiring a counting result of the counter when the battery module is converted from a non-discharging state to a discharging state; performing time conversion based on the counting result and the first time to obtain current time; and performing time recovery based on the current time. The electronic equipment in the embodiment of the invention comprises terminal equipment such as a computer, an iPad, a mobile phone and the like. According to the clock module power supply method and device, the clock module is powered by the battery in the electronic equipment, a power module is not required to be additionally arranged, and cost is low. In this embodiment, when the electric quantity of the electronic device is insufficient or not used or the electronic device is packaged and shipped, the electronic device stops running, the battery module stops supplying power to the clock module, the time of the clock module is acquired (i.e. the first time is acquired), and a counter in the battery module is started to count. When the electronic equipment operates again, the battery module can supply power to the clock module again, so that the current time can be obtained by performing time conversion according to the first time and the counting result, and the clock module is recovered by using the current time, so that the automatic recovery of the time of the electronic equipment is realized, manual operation or networking is not needed, and the time recovery efficiency is higher.
A first embodiment of the present invention provides a time recovery method for an electronic device, where the electronic device has a battery module and a clock module, and the battery module is configured to supply power to the clock module when the electronic device is running, as shown in fig. 1, and includes the following steps:
Step S101, obtaining the time of the clock module when the battery module is converted from a discharging state to a non-discharging state, so as to obtain first time, and starting a counter to start counting;
In this step, when the electronic device is started and operated or the battery module of the electronic device is connected to the ac power supply, the battery module starts to work to supply power to the clock module. The non-discharging state refers to a state that the battery module cannot supply power for the clock module when the electronic equipment is shut down and stops running or the battery module is overdischarged. The step further comprises storing the first time in a predetermined position after the first time is obtained, and specifically storing the first time in a specific space of the ROM of the SPI device.
Step S102, obtaining a counting result of the counter when the battery module is converted from a non-discharging state to a discharging state;
Step S103, performing time conversion based on the counting result and the first time to obtain the current time;
in the specific implementation process, the counting result can be converted into time and then overlapped with the first time, so that the current time can be obtained.
And step S104, performing time recovery based on the current time.
In this step, in the implementation process, the register value of the clock module may be updated based on the current time, so as to complete time recovery. According to the embodiment of the invention, the battery in the electronic equipment is utilized to supply power to the clock module, when the battery stops supplying power to the clock module, the time (namely the first time) of the clock module is acquired, the counter is started to count, when the electronic equipment is started again and the battery supplies power to the clock module again, the counting is stopped, the counting result is acquired, the previous first time is combined to perform conversion, the current time can be determined, and finally the current time is utilized to recover the time of the clock module, so that manual operation or networking is not needed, and the efficiency is improved.
A second embodiment of the present invention provides a time recovery method for an electronic device, where the electronic device has a battery module and a clock module, and the battery module is configured to supply power to the clock module when the electronic device is running, as shown in fig. 2, and includes the following steps:
step S201, judging the working state of the battery module;
When the working state of the battery module is converted from a discharging state to a non-discharging state, the BIOS is utilized to read the time of the clock module to obtain the first time, and the counter in the battery module is started to start counting;
The working states of the battery module in the step comprise a discharging state and a non-discharging state, when the electronic equipment is started and operated, the working state of the battery module is the discharging state, and when the electronic equipment is closed or the battery is excessively discharged, the working state of the battery module is the non-discharging state.
Step S202, judging the working state of a battery module;
When the working state of the battery module is converted from a non-discharging state to a discharging state, the counter is closed, the count value in the counter is read through the embedded controller, a counting result is obtained, and the counting result is sent to the BIOS.
Step S203, converting the counting result into a second time by using the BIOS; superposing the second time and the first time by using the BIOS to obtain the current time;
Step S204, updating the register value of the clock module based on the current time to complete time recovery.
Taking a specific application scenario as an example, as shown in fig. 3, a CPU, an EC (embedded controller) and a battery module are disposed in an electronic device, where the battery module steps down through a PWR LOD (power conversion module) to supply power to an RTC module (clock module) in the CPU when discharging, when the electronic device, such as a computer, completes a functional test in a factory, the electronic device is packaged and goes out of a warehouse, and then a user purchases the computer, and when the user starts the computer, a problem of incorrect time usually occurs. Therefore, the time recovery method can be adopted to automatically recover the time of the computer. Specific:
After the computer completes the function test in the factory, a shift mode program is executed (the battery module is converted from a discharging state to a non-discharging state, namely, the power supply for the clock module is stopped), and then packaging and shipment are carried out; when the shift mode program is executed, the BIOS in the CPU may be used to read the time of the clock module (assumed to be T0) and store the time in a specified space of the ROM, and when the battery module enters the shift mode, the MCU (micro control unit) inside the battery module may start counting.
When a user purchases a computer and starts up after inserting an alternating current power supply ACADAPTER (an alternating current power supply adapter) for the first time, the battery module exits the shift mode (namely, the working state of the battery module is converted into a discharging state after a non-discharging state), and the MCU in the battery stops counting to obtain a counting result;
When the computer is started, the BIOS in the CPU reads the counting result through the EC (embedded controller), and the BIOS performs time conversion by utilizing the first time (T0) stored before and the counting result to obtain the current time, and updates (re-write) the RTC register of the RTC RAM of the current computer. After the RTC time of the system is recovered, the system can normally enter an OS (operating system).
In another application scenario, the user may use the time recovery method of the present invention to recover the time of the computer each time the computer is started.
When the computer system enters DC S5, the battery will enter a normal discharge state. Before the battery meets the condition of entering sleep mode (such as detecting that the current threshold is smaller than a preset value or detecting that the discharge time is longer than a preset discharge time), the EC wake system is notified, the current time is recorded and kept to the EC ROM, and then the system is closed. When the battery enters sleep mode, the MCU (micro control unit) inside the battery module will start counting.
When the user inserts the power adapter and starts up again, the battery module can exit the Sleep mode, and meanwhile the MCU in the battery stops counting. The BIOS in the CPU reads the count result of the battery module through the EC). The BIOS performs time conversion by using the first time (T0) stored before and the counting result to obtain the current time, and updates (re-write) the RTC register of the RTC RAM of the current computer. Finally, the RTC time recovery of the system is completed, and then the system normally enters the OS.
In this embodiment, the working state of the battery module is determined to be converted from the discharging state to the non-discharging state according to the insufficient battery power of the computer or the shutdown state, so that the first time of the clock module can be obtained at this time, and a counter inside the battery module is started to start counting; when the computer is powered on again and connected with the power supply, the working state of the battery module can be determined to be converted from a non-discharging state to a discharging state, then the counter can be turned off at the moment to obtain a counting result, then the current time is determined according to the counting result and the first time, and then the time of the clock module is recovered according to the current time.
A third embodiment of the present invention provides a time recovery apparatus for an electronic device, the apparatus being applied to an electronic device, the electronic device having a battery module and a clock module, the battery module being configured to supply power to the clock module when the electronic device is operated, the apparatus comprising:
a first obtaining module 1, configured to obtain a time of the clock module when the battery module is switched from a discharging state to a non-discharging state, so as to obtain a first time, and start a counter to start counting;
A second obtaining module 2, configured to obtain a count result of the counter when the battery module is converted from the non-discharge state to the discharge state;
A time conversion module 3, configured to perform time conversion based on the count result and the first time, to obtain a current time;
And the time recovery module 4 is used for carrying out time recovery based on the current time.
Specifically, in this embodiment, the first obtaining module is specifically configured to: judging the working state of the battery module; when the working state of the battery module is converted from a discharging state to a non-discharging state, the BIOS is utilized to read the time of the clock module to obtain the first time, and a counter in the battery module is started to start counting.
In this embodiment, the second obtaining module is specifically configured to: judging the working state of the battery module; when the working state of the battery module is converted from a non-discharging state to a discharging state, the counter is closed, the count value in the counter is read through the embedded controller, a counting result is obtained, and the counting result is sent to the BIOS.
In this embodiment, the time scaling module is specifically configured to: converting the count result to a second time using the BIOS; and superposing the second time and the first time by using the BIOS to obtain the current time.
In this embodiment, the time recovery module is specifically configured to: and updating a register value of the clock module based on the current time to complete time recovery.
Preferably, the embodiment further includes a storage module, where the storage module is configured to store the first time at a predetermined location.
The embodiment of the invention has the beneficial effects that: the battery inside the electronic equipment is utilized to supply power for the clock module, when the battery stops supplying power for the clock module, the time (namely the first time) of the clock module is acquired, the counter is started to count, when the electronic equipment is started again and the battery supplies power for the clock module again, the counting is stopped, the counting result is acquired, then the previous first time is combined to perform conversion, the current time can be determined, finally, the current time is utilized to perform time recovery on the clock module, manual operation or networking is not needed, and the efficiency is improved.
The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention, the scope of which is defined by the claims. Various modifications and equivalent arrangements of this invention will occur to those skilled in the art, and are intended to be within the spirit and scope of the invention.

Claims (4)

1. A time recovery method for an electronic device, wherein the electronic device has a battery module and a clock module therein, the battery module being configured to power the clock module when the electronic device is in operation, the method comprising the steps of:
acquiring the time of the clock module when the battery module is converted from a discharging state to a non-discharging state, so as to acquire first time, and starting a counter to start counting;
acquiring a counting result of the counter when the battery module is converted from a non-discharging state to a discharging state;
performing time conversion based on the counting result and the first time to obtain current time;
performing time recovery based on the current time;
the method for obtaining the counting result of the counter when the battery module is converted from the non-discharging state to the discharging state specifically comprises the following steps:
judging the working state of the battery module;
When the working state of the battery module is converted from a non-discharging state to a discharging state, the counter is closed, the count value in the counter is read through the embedded controller, a counting result is obtained, and the counting result is sent to the BIOS;
the step of obtaining the current time by performing time conversion based on the counting result and the first time specifically includes:
converting the count result to a second time using the BIOS;
and superposing the second time and the first time by using the BIOS to obtain the current time.
2. The method of claim 1, wherein the step of obtaining the time of the clock module when the battery module is switched from the discharging state to the non-discharging state to obtain the first time and starting the counter to start counting comprises:
judging the working state of the battery module;
when the working state of the battery module is converted from a discharging state to a non-discharging state, the BIOS is utilized to read the time of the clock module to obtain the first time, and the counter in the battery module is started to start counting.
3. The method according to claim 1, wherein the time recovery based on the current time specifically comprises:
and updating a register value of the clock module based on the current time to complete time recovery.
4. The method of claim 1, wherein after the first time is acquired, the method further comprises: the first time is saved at a predetermined location.
CN202010396850.3A 2020-05-12 2020-05-12 Time recovery method and device for electronic equipment Active CN111367355B (en)

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